Performance booster: Microcontroller has network, HMI capabilities
Block diagram shows the main elements of Atmel's AT91SAM9263 microcontroller, which claims to offer more bandwidth than any other ARM9-based MCU on the market.
San Jose, CA —A 200 MIPS ARM926EJ-S-based microcontroller from Atmel Corp . reportedly overcomes the bottlenecks created by graphically-interfaced, data intensive applications. Company claims no other ARM9-based MCU on the market has comparable bandwidth.
AT91SAM9263, the latest addition to the company's SAM9 family, uses 27 DMA channels—including Atmel's 18-channel peripheral DMA controller (PCD), a nine-layer bus matrix, and two additional buses for data- and instruction-TCMs (tightly-coupled-memories)—that boost CPU performance and on-chip data transfer rates of up to 41.6 Gpbs. Two external bus interfaces allow support for GByte-plus external memories.
On-chip HMI peripherals include a camera interface, TFT/STN LCD controller, a 6-channel audio front-end interface (AC97), I2S, and a 2-D graphics co-processor that off-loads line draw, block transfer, polygon fill, and clipping functions from the CPU. Networking peripherals include a 12 Mbps USB host and device, 10/100 Ethernet MAC, and a 1 Mbps control area network (CAN). Four USARTs, two 50 Mbps serial parallel interfaces (SPI), CompactFlash, SDIO (MCI), and a two-wire interface can be connected to external wired and wireless communication modules such as GPRS modem and Wi-Fi.
—Control Engineering Daily News Desk
Jeanine Katzel , senior editor